28572702722 has 8 divisors (see below), whose sum is σ = 42874064076. Its totient is φ = 14281348032.

The previous prime is 28572702713. The next prime is 28572702727. The reversal of 28572702722 is 22720727582.

It can be written as a sum of positive squares in 2 ways, for example, as 26481378361 + 2091324361 = 162731^2 + 45731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28572702727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2494523 + ... + 2505950.

Almost surely, 2^28572702722 is an apocalyptic number.

28572702722 is a deficient number, since it is larger than the sum of its proper divisors (14301361354).

28572702722 is a wasteful number, since it uses less digits than its factorization.

28572702722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003332.

The product of its (nonzero) digits is 439040, while the sum is 44.

The spelling of 28572702722 in words is "twenty-eight billion, five hundred seventy-two million, seven hundred two thousand, seven hundred twenty-two".